Sectional core for hollow rubber articles.



T. HOWARD & G. B. GLEGG.

SBGTIONAL GORE FOR HOLLOW RUBBER ARTICLES.

APPLICATION FILED JULY 22, 19x3v 1,113,009. 4 Patented 00t .6,1914.

UNITED STATES PATQQNT UFFIGE.

TOM HOWARD AND GEORGE BENJAMIN CLEGG. 0F PFC EIWZZITI i ll'Tfi ll-i 3.53419; 3'11.

SECTIONAL CORE FOR HOLLC'x-V RYDER.

Specification of Letters Patent.

Pat exited let. ti. 1914.

To m! I 'ZIZW it may concern:

Bo it known that we. Ton Howano and tluonon l'iE'LNJAHlN Cnnoo, citizens of the l llllt l t t-ates. residing at Providence. in the emu of Providence and State of ltliotle bland. have invented a new and use ful Improvement in Sectional Cores for Hollow Rubber Articles, of which the following is :i specification.

in the usual construction and method of using! cores for rubber Water-bottles. as her tofore usetl. so far as known, the core proper formed in one or more pieces entirely ot a fusible metal. In this fol'in of in re alul methotl of use, it is necessary to ("uwtrtv't a core for each rubber water-bottle manulaeturetl. as the core is destroyed in melting the same out of the bottle and with a material loss of fusible metal. This con strut-lion and use of fusible metal cores is cxtrenukv expensive in the manufacturing of rubber water bottles and the like.

()ur invention has reference to an improvement in the art of manufacturing hol low articles antl more particularly 'to an improvement in the construction of seetional ('(li'tw for use in the manufacturing of seamless rubber hot water bottles anti the lll\(.

.\hhoug'h our invention may be usetl for various forms and sizes of cores and for various P'ttl'l')(; t\ it is particularly adaptable to the construction of seamless rubber Water bottles.

The object of our invention is to improve the ronstlut'tion of a sectional core for hol-' l w articles. whereby the sections of the core are firmly secured together in their operative positions and are automatically released so as to be easily separated and re- 1 moved through a small opening in the hollow article. on the application of heat to the core.

Another object of our invention is to simplify the construction of sectional cores for hollow articles. thereby reducing the cost of manufacturing the same.

Further objects of our invention are to simplify the operations of forming, separating and removing the sections of the core.

thereby materially saving in time, cost and labor. 7

Our invention consists in the peculiar and novel construction of a sectional core for hollow articles, the principal feature of whi h is the fusible means for mechanically antl rigidly securing the scmions of the core together. Whcrebv on the J,t";i ;.l.l lrl of a predetermined degree or" heat the various sections of the core will be automatically released, when the sections can be easily removed through an opening in the hollow article,

Figure 1. n have view of our improved sectional core as adapted for manufacturing seamless rubber unto! hott s with the rublzer bottle iutlirzitetl in hrol .1; lines. Fig. l is an edge \lSW of the sectional core. Fig. I) is a transrerse sectional View taken on line 2P4, of Fig. 1 through the core and Fig. 4 is a detail tit? partly in s ction of the upper half of a ntrullfltfil Form of sectional wore,

In the (hunting indicates a r ctional core and 7 a rubber water h'rttle H'U'lltitttd in broken lines. The core I? is tormetl of a plurality of l 'nraitutlinal sect -u:-: x 8.. the fen tral section B being sutlirzentlv lon to exltlltl (Hit through tho mon q of tin lia -hsectit n Lismflicient iv narrow [to that they can be Rite-ill drawn out through the mouth of the in ttle and shaped so that. when a sembled they form the c mplete tore 6. as shown in Fig. l. A ventral transverse hole 9 is formed through the secti ns 8. 8. and is preferably course, k at each end. fusible metal fasten a? i i1 inserted through the hole 9 amt s hr upsetting the (TNT) ot the rwl. mm. in Fig 3.. thereby mocha o rally firmly Se curing the etti a The rod 10 is i tll'lltil 11 Yul whi h hecomes m lten at a tenure e "mt-low that lestrurtive t nileani' in the n'liit ilitl to each sertioo v. cured to its up n wires 1.]. 11. are bent into grooves i3. in the upper entls of the sections anti carried out through the mouth of the bottle. to facilitate the removal of the sections.

In the use of our improved sectional core, a seamless rubber water mttle is formed around the core and vulear. .ed in the usual Way. The heat uset in vulca nizing the rubber when it reaches a pretleterz'nincd degree melts the red It) ther; freeing the sections 8. 8. one from the ot After the bottle is ruiean xe l the tree ;-ns H. 8. of the core are car? ntl quit-l removed from t ub,"

sections or other suitable forms may be used for mechanically and fusibly securing the sections together.

-' Having thus-described our invention we claim as new 1. In a sectional core for hollow rubber articles, a plurality of substantially nonfusible sections forming the body of the core fusible metal means for securing the substantially non-fusible sections of the core together, whereby on the application of a predetermined degree 05 heat to the core the substantially non-fusible sections are released one from the other and may be easily removed through an opening in the hollow article.

2. In a sectional core for hollow rubber articles. a plurality of substantially non-j fusible longitudinal metal sections forming 1 the body of the core. fusible metal means for detachably securing all of the sections of the core together, whereby on the appli cation of a predetermined degree of heat to j the core the fusible. metal is fused and all T of the sections an released one from the other and may be easily Withdrawn through a small opening in the hollow rubber article.

3. A core for hollow rubber articles con structed of a plura ity ot substantially non fusible metal sections placed side by side and j forming the body of the core, and fusible 5 metal means in contact with each section and adapted to mechanically and fusibly secure the sections together, whereby on the 1 application of a predetermined degree of I heat the fusible metal will fuse and the seei tions will be automatically released one i from the other.

i 4. A core for hollow rubber articles the i body of which is'constructed of a plurality l of substantially non-fusible metal sections.

said sections being in contact on their sides. 4

and a fusible metal member in internal contact with each section and adapted to me- 5 chanically and fusibly secure the sections together, whereby 0n the application of a prcdetermined degree of heat to the fusible member, the said internal fusible member will become molten, thereby automatically l rt'ileasing the sections one from the other. 1 A core for llOllOW rubber articles coir structcd of a plurality of substantially non fusible metal sections, a fusible metal rod 1 extending through the sections, said sections being firmly secured together by enlargin the ends of the rod.

6. A core for hollow articles constructed of a plurality of sections, each having a transverse hole forming a continuous trans verse hole extending through the sections, a l fusiblcrod extending through the sections in the transverse hole, said sections being firmly secured together by upsetting the ends of the fusible rod.

7. A. core for hollow articles constructed of a plurality of longitudinal sections nith a transverse hole extending through the sec tions, a fusible rod in the transverse hole and secured to the sections. and a flexible wire scoured to each section.

in testimony whereof, we have signed our names to this specification in the presence of two subscrilfiing witnesses.

TOM HOW ARD. TwlURGE BENJ' XMIN 'itui lmox E. Diiisronrn, I (was H. LUTHER.

CLEGG. 

